The Briggs & Stratton 590400 Lawn Mower Carburetor is a genuine OEM replacement part designed for compatible Briggs & Stratton engines. It mixes air and fuel to support proper engine combustion and smooth operation. This carburetor is ideal for replacing a worn or faulty component that may cause starting difficulties or poor engine performance. Designed for select engine models, it he... https://www.wholetoolbox.com/briggs-stratton-590400-carburetor/590400.html